A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 94
led Whites pulley,from the name of the inventor, Mr. James White, who obtained apatent for it. 194. Tackles of pulleys are used on board ships, where thewheels are fixed in blocks, by means of which the sailors canraise the masts, hoist the sails, and conveniently perform othernecessary operations.…
Physics
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